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SN54145J from TI,Texas Instruments

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SN54145J

Manufacturer: TI, TM

BCD-TO-DECIMAL DECODERS/DRIVERS
Partnumber Manufacturer Quantity Availability
SN54145J TI, TM 120 In Stock

Description and Introduction

BCD-TO-DECIMAL DECODERS/DRIVERS The SN54145J is a BCD-to-decimal decoder/driver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type**: BCD-to-Decimal Decoder/Driver  
- **Technology**: TTL (Transistor-Transistor Logic)  
- **Supply Voltage (VCC)**: 4.5V to 5.5V  
- **Operating Temperature Range**: -55°C to +125°C  
- **Output Type**: Open-Collector  
- **Number of Inputs**: 4 (BCD inputs: A, B, C, D)  
- **Number of Outputs**: 10 (Decimal outputs: 0-9)  
- **Package Type**: Ceramic DIP (Dual In-line Package)  

### **Descriptions and Features:**  
- Decodes a 4-bit Binary-Coded Decimal (BCD) input into one of ten mutually exclusive decimal outputs.  
- Designed for driving indicators, relays, or other high-current loads due to its open-collector outputs.  
- Features active-low outputs (outputs sink current when selected).  
- Includes input clamping diodes for transient protection.  
- Suitable for industrial and military applications due to its wide operating temperature range.  

This device is part of TI’s 5400 series, which is designed for rugged, high-reliability applications.

Application Scenarios & Design Considerations

BCD-TO-DECIMAL DECODERS/DRIVERS

Alternative Part Number

  • MC145J --: Pin-compatible BCD-to-decimal decoder/driver from a different series, widely used as a direct substitute for the SN54145J.
  • CD4028BE --: CMOS BCD-to-decimal decoder with similar decoding function; different series and technology, suitable for lower-power replacement designs.
  • 74HC145 --: High-speed CMOS BCD-to-decimal decoder in a different logic family, offering functional equivalence with improved power characteristics.
  • 74HC42N --: High-speed CMOS BCD-to-decimal decoder with similar decoding behavior, suitable as a modern replacement where supply voltage and drive requirements permit.

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